What question did this study set out to answer?

The study aims to determine the hydraulic properties of subglacial sediment by analyzing the mechanical response of boreholes filled with water.

Hydraulic properties of subglacial sediment determined from the mechanical response of water-filled boreholes

View Full Paper

Ask AI

Bookmark

Authors

Randomized trial demonstrates hydraulic properties in subglacial sediments, indicating significant influence from borehole dynamics.

The study aims to determine the hydraulic properties of subglacial sediment by analyzing the mechanical response of boreholes filled with water.
Developed a numerical model describing the response of unconnected boreholes to freezing effects.
Used nonlinear transient visco-elastic ice-flow law and top-down freezing approximation.
Compared model results with pressure records from six boreholes across different years.
Hydraulic conductivity of the till under Trapridge Glacier measured at 1.35-7.0 × 10 −9 m s −1.
Model results aligned well with analytic solutions when parameters were accurately chosen.
Borehole response to sudden pressure changes was rapid, minimally affecting the basal signal.

Waddington et al. (1995) studied this question.

View Full Paper

Ask AI

Bookmark